diff --git a/core/src/lib.rs b/core/src/lib.rs
index 0c57ed103..41e12e80d 100644
--- a/core/src/lib.rs
+++ b/core/src/lib.rs
@@ -232,7 +232,6 @@
 #![feature(simd_ffi)]
 #![feature(staged_api)]
 #![feature(stmt_expr_attributes)]
-#![feature(target_feature_11)]
 #![feature(trait_alias)]
 #![feature(transparent_unions)]
 #![feature(try_blocks)]